---
title: "Create Object Type"
method: POST
path: "/v1/object-types"
---

# Create Object Type

`POST /v1/object-types`

Create a typed schema for custom rows within a source.

Requires the **Import** permission (`ingest` scope). Field names must be
unique, and each field definition declares the accepted value type.

## Request body

- CreateObjectTypeRequest
  - `version` integer
  - `sourceId` string, uuid, required
  - `name` string, required
  - `displayName` string, required
  - `fieldDefinitions` FieldDefinitionRequest[], required
    - `version` integer
    - `name` string, required
    - `fieldType` 'textarea' | 'string' | 'boolean' | 'int' | 'double' | 'datetime' | 'date' | 'list', required — Field value types accepted by row ingestion requests.
    - `label` string, nullable
    - `required` boolean

## Response `201`

Successful Response

- ObjectTypeResponse
  - `id` string, required
  - `sourceId` string, required
  - `name` string, required
  - `displayName` string, required
  - `fieldDefinitions` FieldDefinitionResponse[], required
    - `name` string, required
    - `fieldType` string, required
    - `label` string, nullable
    - `required` boolean, required
  - `createdAt` string, required
  - `updatedAt` string, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/sybill/apis/sybill-api.md) · [All operations](https://skmtc.net/sybill/apis/sybill-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sybill/sybill-api/revisions/f499ec011b17/schema)